[ 'gaŋglɪən ]
■ noun ( plural ganglia or ~s )
1》 Anatomy a structure containing a number of nerve cells, often forming a swelling on a nerve fibre.
↘a well-defined mass of grey matter within the central nervous system.
2》 Medicine an abnormal benign swelling on a tendon sheath.
Derivatives
~ic adjective
Origin
C17: from Gk ~ 'tumour on or near sinews or tendons'.